History of deepen 2 changes

In src/cli/sync.rs, lines 730–752 on d3cd7ef95da674d201fbef0231b2d467bb6335e2b57513b921842b2bb4931b13. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 730,752:src/cli/sync.rs.